Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. Exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material.
The passenger pigeon or wild pigeon is an extinct species of pigeon that was endemic to North America. Its common name is derived from the French word passager, meaning "passing by", due to the migratory habits of the species. The scientific name also refers to its migratory characteristics. The morphologically similar mourning dove was long thought to be its closest relative, and the two were at times confused, but genetic analysis has shown that the genus Patagioenas is more closely related to it than the Zenaida doves.
Telluride is the county seat and most populous town of San Miguel County in the southwestern portion of the U.S. state of Colorado. The town is a former silver mining camp on the San Miguel River in the western San Juan Mountains. The first gold mining claim was made in the mountains above Telluride in 1875, and early settlement of what is now Telluride followed. The town was founded in 1878 as "Columbia", but due to confusion with a California town of the same name, was renamed Telluride in 1887 for the gold telluride minerals found in other parts of Colorado. These telluride minerals were never found near Telluride, but the area's mines for some years provided zinc, lead, copper, silver, and other gold ores.
Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead. It also involves the same techniques used to excavate ores of gems, such as diamonds and rubies. Soft-rock mining refers to the excavation of softer minerals, such as salt, coal, and oil sands.
Picher is a ghost town and former city in Ottawa County, northeastern Oklahoma, United States. It was a major national center of lead and zinc mining for more than 100 years in the heart of the Tri-State Mining District.
Broken Hill is an inland mining city in the far west of outback New South Wales, Australia. It is near the border with South Australia on the crossing of the Barrier Highway (A32) and the Silver City Highway (B79), in the Barrier Range. It is 315 m (1,033 ft) above sea level, with a hot desert climate, and an average rainfall of 235 mm (9 in). The closest major city is Adelaide, the capital of South Australia, which is more than 500 km (311 mi) to the southwest and linked via route A32.
Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a 'pit', and the above-ground structures are a 'pit head'. In Australia, "colliery" generally refers to an underground coal mine.
A miner is a person who extracts ore, coal, chalk, clay, or other minerals from the earth through mining. There are two senses in which the term is used. In its narrowest sense, a miner is someone who works at the rock face; cutting, blasting, or otherwise working and removing the rock. In a broader sense, a "miner" is anyone working within a mine, not just a worker at the rock face.
Mining in the engineering discipline is the extraction of minerals from underneath, open pit, above or on the ground. Mining engineering is associated with many other disciplines, such as mineral processing, exploration, excavation, geology, and metallurgy, geotechnical engineering and surveying. A mining engineer may manage any phase of mining operations, from exploration and discovery of the mineral resources, through feasibility study, mine design, development of plans, production and operations to mine closure.
Salt mining extracts natural salt deposits from underground. The mined salt is usually in the form of halite, and extracted from evaporite formations.
Harlan County, USA is a 1976 American documentary film covering the "Brookside Strike", a 1973 effort of 180 coal miners and their wives against the Duke Power Company-owned Eastover Coal Company's Brookside Mine and Prep Plant in Harlan County, southeast Kentucky. It won the Academy Award for Best Documentary at the 49th Academy Awards.
Drift mining is either the mining of an ore deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. A drift mine is an underground mine in which the entry or access is above water level and generally on the slope of a hill, driven horizontally into the ore seam. Random House dictionary says the origin of the term "drift mine" is an Americanism, circa 1885–1890.
Mes Aynak, also called Mis Ainak or Mis-e-Ainak, was a major Buddhist settlement 40 km (25 mi) southeast of Kabul, Afghanistan, located in a barren region of Logar Province. The site is also the location of Afghanistan's largest copper deposit.
Hpakant is a town in Hpakant Township, Kachin State of the northernmost part of Myanmar (Burma). It is located on the Uyu River 350 km north of Mandalay. It is famous for its jade mines which produce the world's best quality jadeite.
Modesto Varischetti was an Italian miner who was trapped in a gold mine for nine days after a thunderstorm flooded it in March 1907. The 12-level mine was located at Bonnievale, near Coolgardie, Western Australia.
My Bloody Valentine 3D is a 2009 American slasher film directed and co-edited by Patrick Lussier, and written by Todd Farmer and Zane Smith from a screen story by Stephen Miller. Serving as a remake of the 1981 Canadian slasher film of the same name, it stars Jensen Ackles, Jaime King, Kerr Smith, Tom Atkins, and Kevin Tighe. The film focuses on the residents of a small town that is plagued by a serial killer in mining gear on Valentine's Day.
The 2010 Copiapó mining accident, also known then as the "Chilean mining accident", began on 5 August 2010, with a cave-in at the San José copper–gold mine, located in the Atacama Desert 45 kilometers (28 mi) north of the regional capital of Copiapó, in northern Chile. Thirty-three men, trapped 700 meters (2,300 ft) underground and 5 kilometers (3 mi) from the mine's entrance via spiraling underground ramps, were rescued after 69 days.
Coal mining in the United Kingdom dates back to Roman times and occurred in many different parts of the country. Britain's coalfields are associated with Northumberland and Durham, North and South Wales, Yorkshire, the Scottish Central Belt, Lancashire, Cumbria, the East and West Midlands and Kent. After 1972, coal mining quickly collapsed and had practically disappeared by the 21st century. The consumption of coal – mostly for electricity – fell from 157 million tonnes in 1970 to 18 million tonnes in 2016, of which 77% was imported from Colombia, Russia, and the United States. Employment in coal mines fell from a peak of 1,191,000 in 1920 to 695,000 in 1956, 247,000 in 1976, 44,000 in 1993, and to 2,000 in 2015.
Gold Rush is a reality television series that airs on Discovery and its affiliates worldwide. The series follows the placer gold mining efforts of various family-run mining companies, mostly in the Klondike region of Dawson City, Yukon, Canada, as well as in the U.S. state of Alaska. In its 12th season as of early 2021, prior seasons also included mining efforts in South America and western North America.
Strataca is a salt mine museum in Hutchinson, Kansas, United States. It was previously known as the Kansas Underground Salt Museum. The museum is built within one of the world's largest deposits of rock salt, formed 275 million years ago, and provides the opportunity to go 650 feet (200 m) beneath the Earth’s surface. The museum is located in the Hutchinson Salt Company mine which began operation in 1923 as Carey Salt Company. There are 14 other salt mines in the United States, but Strataca is the only one accessible to tourists.
